Electromagnetic Fields and Energy by Hermann A. Haus and James R. Melcher (1989 book publication)

By Hermann Anton Haus and James R. Melcher. Prentice-Hall, 1989; MIT hosts the online text.

Publication record: ocw.mit.edu/courses/res-6-001-electromagnetic-fields-and-energy-spring-2008/a1b1a3744120e499a53cb11c09848298_preface.pdf

Section 9.7 of Electromagnetic Fields and Energy by Hermann A. Haus and James R. Melcher. Whole-book authorship applies. web.mit.edu/6.013_book/www/chapter9/9.7.html. Example 9.7.1 explicitly assumes a gap small compared with transverse dimensions and approximately uniform fields in circuit sections. The subsequent discussion distinguishes those estimates from a full magnetic scalar-potential solution.

Section 13.4; whole-book authorship applies.

Online text: web.mit.edu/course/6/6.013_book/www/chapter13/13.4.html

Cited passage: Demonstration 13.4.1 and Fig. 13.4.5.